

package com.gc.server.service.impl;

import com.alibaba.excel.context.AnalysisContext;
import com.alibaba.excel.event.AnalysisEventListener;
import com.gc.server.vo.up.LinkHeadUp;
import org.springframework.transaction.annotation.Transactional;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.alibaba.excel.EasyExcel;
import com.alibaba.fastjson.JSON;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.gc.server.vo.down.LinkHeadDown;

import java.io.InputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.io.IOException;
import java.net.URLEncoder;

import com.gc.server.vo.down.LinkHeadDown;

import javax.servlet.http.HttpServletResponse;
import java.util.stream.Collectors;

import com.gc.server.dao.LinkHeadDao;
import com.gc.server.entity.LinkHeadEntity;
import com.gc.server.vo.LinkHeadVo;
import com.gc.server.service.LinkHeadService;
import com.yf.service.impl.BaseServiceImpl;

/**
 * 账户记录Service实现类
 *
 * @author hxf
 * @email 505860922@qq.com
 * @date Thu Oct 22 15:40:31 CST 2020
 */
@Service
public class LinkHeadServiceImpl extends BaseServiceImpl<LinkHeadEntity> implements LinkHeadService {

    private LinkHeadDao dao;


    @Autowired
    public void setDao(LinkHeadDao dao) {
        this.dao = dao;
        super.setBaseDao(dao);
    }


    @Override
    public List<LinkHeadVo> findVo(LinkHeadVo vo) {
        return dao.findVo(vo);
    }

    @Override
    public LinkHeadVo getVo(Long id) {
        return dao.getVo(id);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public int saveVo(LinkHeadVo vo) {
        //新增编号

        if(vo.getEntity().getCode()==null){
            dao.save(vo.getEntity());
            vo.getEntity().setCode("H" + vo.getEntity().getId());
        }else {
            vo.getEntity().setId(Long.valueOf(vo.getEntity().getCode().replace("H","")));
        }

        return dao.update(vo.getEntity());
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public int updateVo(LinkHeadVo vo) {
        return dao.update(vo.getEntity());
    }


    @Override
    public void downLoad(HttpServletResponse response, List<LinkHeadVo> list) {
        try {
            List<LinkHeadDown> datas = list.stream().map(item -> new LinkHeadDown(item)).collect(Collectors.toList());
            response.setContentType("application/vnd.ms-excel");
            response.setCharacterEncoding("utf-8");
            // 这里URLEncoder.encode可以防止中文乱码 当然和easyexcel没有关系
            String fileName = URLEncoder.encode("测试", "UTF-8");
            response.setHeader("Content-disposition", "attachment;filename=" + fileName + ".xlsx");
            EasyExcel.write(response.getOutputStream(), LinkHeadDown.class).sheet("模板").doWrite(datas);
        } catch (Exception e) {
            e.printStackTrace();
        }

    }


    @Override
    public void upload(InputStream file) {
        EasyExcel.read(file, LinkHeadUp.class, new UploadDataListener()).sheet().doRead();
    }

    class UploadDataListener extends AnalysisEventListener<LinkHeadUp> {


        @Override
        @Transactional(rollbackFor = Exception.class)
        public void invoke(LinkHeadUp upVo, AnalysisContext analysisContext) {
            saveVo(upVo.toVo());
        }

        @Override
        public void doAfterAllAnalysed(AnalysisContext analysisContext) {

        }

    }


    /**内部方法**/


    /**外部方法实现**/

    @Override
    public List<LinkHeadEntity> findByUserId(Long userId) {
        return dao.findByUserId(userId);
    }

    @Override
    public LinkHeadEntity findByCode(String code) {
        return dao.findByCode(code);
    }
}
